0272 G of a Monoprotic Acid (Mw = 189 G/mol)

question 85

Multiple Choice

0.272 g of a monoprotic acid (Mw = 189 g/mol) is dissolved in water to produce 25.0 mL of a solution with pH = 4.93. Determine the ionization constant of the acid.

• A) 4.1 × 10^-8
• B) 1.4 × 10^-10
• C) 2.1 × 10^-4
• D) 2.8 × 10^-7
• E) 2.4 × 10^-9

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